CPP: Move test into correct file.

cpp/ql/test/query-tests/Critical/MemoryFreed/MemoryFreed.expected

@@ -26,7 +26,6 @@
 | test.cpp:128:15:128:16 | v4 |
 | test.cpp:185:10:185:12 | cpy |
 | test.cpp:199:10:199:12 | cpy |
-| test.cpp:205:7:205:11 | ... = ... |
 | test_free.cpp:11:10:11:10 | a |
 | test_free.cpp:14:10:14:10 | a |
 | test_free.cpp:16:10:16:10 | a |
@@ -97,6 +96,7 @@
 | test_free.cpp:255:10:255:10 | p |
 | test_free.cpp:260:9:260:9 | p |
 | test_free.cpp:263:12:263:12 | p |
+| test_free.cpp:269:7:269:11 | ... = ... |
 | virtual.cpp:18:10:18:10 | a |
 | virtual.cpp:19:10:19:10 | c |
 | virtual.cpp:38:10:38:10 | b |

cpp/ql/test/query-tests/Critical/MemoryFreed/MemoryMayNotBeFreed.expected

@@ -1,2 +1,2 @@
-| test.cpp:203:12:203:17 | call to malloc | This memory allocation may not be released at $@. | test.cpp:206:1:206:1 | return ... | this exit point |
 | test_free.cpp:36:22:36:35 | ... = ... | This memory allocation may not be released at $@. | test_free.cpp:38:1:38:1 | return ... | this exit point |
+| test_free.cpp:267:12:267:17 | call to malloc | This memory allocation may not be released at $@. | test_free.cpp:270:1:270:1 | return ... | this exit point |

cpp/ql/test/query-tests/Critical/MemoryFreed/test.cpp

@@ -198,9 +198,3 @@ void test_strndupa_dealloc() {
 	char *cpy = strndupa(msg, 4);
     free(cpy); // BAD [NOT DETECTED]
 }
-
-void test_free_malloc() {
-	void *a = malloc(10);
-	void *b;
-	free(b = a);
-}

cpp/ql/test/query-tests/Critical/MemoryFreed/test_free.cpp

@@ -261,4 +261,10 @@ void test_ref_delete(int *&p) {
 	p = new int;
 	use(p);  // GOOD
     delete p;  // GOOD
+}
+
+void test_free_assign() {
+	void *a = malloc(10); 
+	void *b;
+	free(b = a); // GOOD 
 }